PREFACE. Vii 



needed, always desiring me to inform him should any 

 additional expenses occur on closing up the affairs of the 

 expedition. It seems to me that the good arising from 

 the knowledge of such facts justifies me in speaking here 

 of these generous deeds, accomplished so unostentatiously 

 that they might otherwise pass unnoticed. 



All obstacles thus removed from my path, I made my 

 preparations for departure as rapidly as possible. The 

 assistants I selected to accompany me were Mr. James 

 Burkhardt as artist, Mr. John G. Anthony as conchologist, 

 Mr. Frederick C. Hartt and Mr. Orestes St. John as geolo- 

 gists, Mr. John A. Allen as ornithologist, and Mr. George 

 Sceva as preparator. Beside these, my party was enlarged 

 by several volunteers, to whom I was indebted for assist- 

 ance as untiring and efficient as if they had been en- 

 gaged for the purpose. These were Mr. Newton Dexter, 

 Mr. William James, Mr. Edward Copeland, Mr. Thomas 

 Ward, Mr. Walter Hunnewell, and Mr. S. Y. R. Thayer. 

 I should not omit to mention my brother-in-law, Mr. 

 Thomas G. Gary, as one of my aids ; for, though not nom- 

 inally connected with the expedition, he made collections 

 for me at Monte Video, Buenos Ayres, and other places. 

 I was also joined by my friends Dr. and Mrs. Cotting. 

 Dr. Cotting, like myself, was in need of a vacation, and 

 it was his intention to remain with us for as long a 

 time as he could spare from his professional practice. 

 But the climate proved unfavorable to his health, and 

 after passing a couple of months i,n Rio, and sharing 

 with us all our excursions in that neighborhood, he 



